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Auxiliary temperature measurement junction box for YBX4 high-efficiency explosion-proof three-phase asynchronous motor

A three-phase asynchronous, junction box technology, applied in the direction of electric components, electrical components, electromechanical devices, etc., can solve the problems of difficult replacement of wiring terminals, and achieve the effects of excellent sealing performance, simple structure and convenient use of equipment

Pending Publication Date: 2021-11-23
南阳防爆电气研究所有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The wiring terminals of the equipment are set on the wiring board inside the junction box, and it is difficult to replace the wiring terminals

Method used

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  • Auxiliary temperature measurement junction box for YBX4 high-efficiency explosion-proof three-phase asynchronous motor
  • Auxiliary temperature measurement junction box for YBX4 high-efficiency explosion-proof three-phase asynchronous motor
  • Auxiliary temperature measurement junction box for YBX4 high-efficiency explosion-proof three-phase asynchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1-7 As mentioned above, this embodiment provides a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary temperature measurement junction box, including a junction box seat 7, a terminal board 10 arranged inside the junction box seat 7, and fixed on the junction box seat 7. The wire passing device 12 at the bottom of the junction box seat 7, four junction box buckets respectively provided on both sides of the junction box seat 7, the junction box cover 9 connected to the top of the junction box seat 7, the junction box seat 7 and the junction box cover 9 are hexagonal structures. The bottom of the wire passing device 12 is connected with a terminal 15, and the junction box bucket is provided with a compression nut 3, a metal plugging rod 4, a sealing ring 5 and a metal washer 6 sequentially from the outside to the inside.

[0033] The junction box seat 7 and the junction box cover 9 are connected by a first O-ring 8, and the top of th...

Embodiment 2

[0043] Such as Figure 1-7 As mentioned above, this embodiment provides a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary temperature measurement junction box, which is an improvement on the basis of Embodiment 1:

[0044] The outer surface of the bottom of the junction box seat 7 is provided with a flameproof surface 24, and the flameproof joint surface 25 at the contact surface between the junction box seat 7 and the junction box cover 9: L≥14, ic≤0.15; The flameproof joint surface 26 at the contact surface between the junction box seat 7 and the wire passing device 12: L≥14, ic≤0.15.

[0045] The net volume of the temperature measurement junction box is: V≤2000cm³.

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Abstract

The invention relates to the technical field of explosion-proof motor junction boxes, in particular to an auxiliary temperature measurement junction box for a YBX4 high-efficiency explosion-proof three-phase asynchronous motor. The junction box comprises a junction box base, a wiring board arranged in the junction box base, a wire passing device fixed at the bottom of the junction box base, four junction box buckets arranged on the two sides of the junction box base respectively, and a junction box cover connected with the upper portion of the junction box base, and the junction box base and the junction box cover are of a hexagonal structure. The bottom of the wire passing device is connected with a wiring terminal, and a compression nut, a metal blocking rod, a sealing ring and a metal gasket are sequentially arranged in the junction box bucket from outside to inside. The junction box is excellent in sealing performance, good in wiring effect, simple in structure and convenient in wiring, the stator is easy to replace, the use requirements of temperature measurement of the bearing and the stator of the motor can be met at the same time, and the operation safety and reliability of the temperature measurement junction box of the YBX4 high-efficiency explosion-proof three-phase asynchronous motor are ensured.

Description

technical field [0001] The invention relates to the technical field of explosion-proof motor junction boxes, in particular to a YBX4 high-efficiency flameproof three-phase asynchronous motor auxiliary temperature-measuring junction box. Background technique [0002] As the prime mover, flameproof three-phase asynchronous motors are widely used in explosive gas environments, such as coal, petroleum, chemical and other industries, to drive various general machinery. Therefore, their safety and reliability are of great significance compared with ordinary motors . Stator temperature measurement is a method of motor protection. After it is introduced into the control system, the temperature of the motor winding can be monitored. When the temperature is abnormal, it will alarm or even shut down. On the one hand, it can protect the motor itself, and on the other hand, it can prevent the high temperature from igniting the surrounding explosive gas. However, the stator temperature ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K5/22H02K11/40H02G3/08H02G3/18H02G3/16
CPCH02K5/225H02K11/40H02G3/081H02G3/18H02G3/16
Inventor 陈瑞王军闫强波
Owner 南阳防爆电气研究所有限公司
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